ejection murmur造句怎么写

2、Pansystolic murmurs begin with S1, extend throughout systole, and are characteristically uniform in intensity Systolic ejection murmurs have been likened to the chug of a steam engine laboring up a hill, while pansystolic murmurs have been likened to the high-pitched wail of the engine's whistle.

1、The most fundamental distinction is between systolic ejection murmurs and pansystolic murmurs.